Matakuliah
Tahun
: T0104 – Metode Perancangan Program
: 2010
THE PROGRAM DEVELOPMENT PROCESS
Pertemuan - 18
Pertemuan - 18
The Program Development Process
Objectives
• To become familiar with the process of program
development
The Program Development Process
• Developing a software project is an engineering process.
• Software products, no matter how large or how small,
have the same developmental phases
• Developing a project involves requirements specification,
system analysis, system design, implementation, testing,
deployment, and maintenance
The Program Development Process
The Program Development Process
• Requirements specification
– Requirements specification is a formal process that seeks to
understand the problem and document in detail what the
software system needs to do.
– This phase involves close interaction between users and
developers.
– In the real world, problems are not well defined. You need to
work closely with your customer and study a problem carefully to
identify its requirements
The Program Development Process
• System analysis
– System analysis seeks to analyze the business process in terms
of data flow, and to identify the system's input and output.
– Part of the analysis entails modeling the system's behavior.
– The model is intended to capture the essential elements of the
system and to define services to the system .
The Program Development Process
• System design
– System design is the process of designing the system's
components.
– This phase involves the use of many levels of abstraction to
decompose the problem into manageable components.
– Identify classes and interfaces, and establish relationships
among the classes and interfaces
The Program Development Process
• Implementation
– Implementation is translating the system design into programs.
– Separate programs are written for each component and put to
work together.
– This phase requires the use of a programming language like
C++ and Java.
– The implementation involves coding, testing, and debugging
The Program Development Process
• Testing
– Testing ensures that the code meets the requirements
specification and weeds out bugs.
– An independent team of software engineers not involved in the
design and implementation of the project usually conducts such
testing .
The Program Development Process
• Deployment
– Deployment makes the project available for use.
– For a Java applet, this means installing it on a Web server;
– For a Java application, installing it on the client's computer.
– A project usually consists of many classes.
– An effective approach for deployment is to package all the
classes into a Java archive file
The Program Development Process
• Maintenance
– Maintenance is concerned with changing and improving the
product.
– A software product must continue to perform and improve in a
changing environment.
– This requires periodic upgrades of the product to fix newly
discovered bugs and incorporate changes
Summary
• Phases of developing a software project were
introduced:
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requirements specification
system analysis
system design
Implementation
Testing
Deployment
maintenance
USDP Overview
(Unified Software Development Process)